<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>后盾人</title>
</head>

<body>
    <form action="7.php" method="post">
        <input type="datetime-local" step="5" min="2020-02-12" max="2023-02-12" name="date">
        <button>提交</button>
    </form>
</body>

</html>